(19)

(11)

EP 3 849 689 A1

(12)

(43) Date of publication: 21.07.2021 Bulletin 2021/29 (21) Application number: 19860928.1 (22) Date of filing: 16.09.2019

(51) International Patent Classification (IPC):  B01D 39/16(2006.01) B01D 69/14(2006.01) B01D 53/22(2006.01) C01B 32/158(2017.01) (86) International application number: PCT/US2019/051308 (87) International publication number: WO 2020/056414 (19.03.2020 Gazette 2020/12)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 14.09.2018 US 201862731790 P (71) Applicant: Ohio State Innovation Foundation Columbus, OH 43201 (US)	(72) Inventors: HO, W.S. Winston Columbus, Ohio 43220 (US) HAN, Yang Columbus, Ohio 43210 (US) (74) Representative: Creek, Isobel Clare  The IP Asset Partnership Limited Prama House 267 Banbury Road Oxford OX2 7HT Oxford OX2 7HT (GB)